Re: Oils, coolant and additives in classic Massey Fergusons

Continental gas calls for 10w-30 oil. However, make sure you are buying an oil with a reasonable amount of Zinc dialkydithiophosphate (ZDDP). Basically zinc and phosphate to provide anti wear protection in flat tappet.

If you use a 15-40 in your continental you will be covered as they have sufficient levels of it. However, if you go buy a 10-30 off the shelf that is the current API designation SN, it will not have the amount necessary to protect the motor. You need an API SG, or SL/CF grade. Basically, the grade that contained the necessary ZDDP. A 10-30 motorcycle oil would work fine.